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From Harsh Mathur <>
Subject Re: pio Train error
Date Fri, 02 Dec 2016 11:21:27 GMT
Can you paste the exception? Also make sure there is minimum one event for
the primary event.

Harsh Mathur

*“Perseverance is the hard work you do after you get tired of doing the
hard work you already did."*

On Fri, Dec 2, 2016 at 4:41 PM, TJ <> wrote:

> Hi,
> I am a complete newbie with this software and after nearly a week now of
> trying to install prediction incubating and its dependencies I have finally
> got to the stage where I can see the ‘pio status’
> However, I now get an error when running ‘pio train’
> [INFO] [Engine] Datasource params: (,DataSourceParams(MyTestApp,None))
> [INFO] [Engine] Extracting preparator params...
> [INFO] [Engine] Preparator params: (,Empty)
> [INFO] [Engine] Extracting serving params...
> [INFO] [Engine] Serving params: (,Empty)
> [INFO] [Remoting] Starting remoting
> [INFO] [Remoting] Remoting started; listening on addresses :[
> akka.tcp://sparkDriver@]
> [WARN] [MetricsSystem] Using default name DAGScheduler for source because
> is not set.
> [INFO] [Engine$] EngineWorkflow.train
> [INFO] [Engine$] DataSource: com.iqchef.DataSource@5dfe23e8
> [INFO] [Engine$] Preparator: com.iqchef.Preparator@1989e8c6
> [INFO] [Engine$] AlgorithmList: List(com.iqchef.ALSAlgorithm@67d32a54)
> [INFO] [Engine$] Data sanity check is on.
> [INFO] [Engine$] com.iqchef.TrainingData does not support data sanity
> check. Skipping check.
> [INFO] [Engine$] com.iqchef.PreparedData does not support data sanity
> check. Skipping check.
> Exception in thread “main" org.apache.spark.SparkException: Job aborted
> due to stage failure: Task serialization failed: java.lang.reflect.
> InvocationTargetException
> Could somebody point me in the right direction as to how to fix this
> problem?
> My pio status result is as follows
> root@server1 [/MyTest]# pio status
> [INFO] [Console$] Inspecting PredictionIO...
> [INFO] [Console$] PredictionIO 0.10.0-incubating is installed at
> /home/aml/apache-predictionio-0.10.0-incubating/
> PredictionIO-0.10.0-incubating
> [INFO] [Console$] Inspecting Apache Spark...
> [INFO] [Console$] Apache Spark is installed at
> /home/aml/apache-predictionio-0.10.0-incubating/PredictionIO-0.10.0-
> incubating/vendors/spark-1.5.1-bin-hadoop2.6
> [INFO] [Console$] Apache Spark 1.5.1 detected (meets minimum requirement
> of 1.3.0)
> [INFO] [Console$] Inspecting storage backend connections...
> [INFO] [Storage$] Verifying Meta Data Backend (Source: PGSQL)...
> [INFO] [Storage$] Verifying Model Data Backend (Source: PGSQL)...
> [INFO] [Storage$] Verifying Event Data Backend (Source: PGSQL)...
> [INFO] [Storage$] Test writing to Event Store (App Id 0)...
> [INFO] [Console$] (sleeping 5 seconds for all messages to show up...)
> [INFO] [Console$] Your system is all ready to go.
> Many thanks in advance.
> /Mike

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